Besides, according to doc, Account Usage system tables are need to ingest table linkage. Why? The database INFORMATION_SCHEMA should be enough, right? https://datahubproject.io/docs/generated/ingestion/sources/snowflake/#prerequisites-1

If you plan to enable extraction of table lineage, via the include_table_lineage config flag or extraction of usage statistics, via the include_usage_stats config, you'll also need to grant access to the Account Usage system tables, using which the DataHub source extracts information. This can be done by granting access to the snowflake database.

@clean-tomato-22549 - snowflake source extracts lineage, usage (queries, top users) by looking at audit logs available in snowflake.account_usage views (access_history, object_dependencies) and hence needs access to

snowflake.account_usage

.